Nikka Costa adds another great video to her YouTube channel, Nikka’s Box, this time doing a cover of “Little Lion Man” by Mumford & Sons. You can buy her cover of the song via iTunes or Amazon. Make sure to subscribe to her YouTube channel to get the latest video updates from Nikka.

Adele absolutely kills this cover of Cheryl Cole‘s “Promise This” for BBC’s Live Lounge. Originally an upbeat dance song, Adele tones it down to show off her pipes, as she should. Lucky for us, it’s also a technique we hear in her upcoming album,21.

While the new album by Adele has not officially arrived in the US yet, the Euro scene and the savvy, impatient blogosphere is already eating it up. Some press highlights include:

“With just a piano as backing there are no layers to pull back or hidden meanings to uncover and its simplicity will leave you feeling the full effects of her beautiful make-your-hair-stand-on-end vocals. It’s an early shout, but it could very well be the album of 2011.” – Punchbowl Blog

Ellie Goulding is one of the many outstanding UK artists generating blog buzz, even as her debut album Lights has not yet been released in the US. “Your Song” is not released anywhere yet, but Youtube is gracious enough to let us all watch, regardless of location on the globe. Ellie’s new cover just makes us want to hug somebody.

Check out Quadron‘s video for their new cover of Michael Jackson‘s song, “Baby Be Mine”. The Danish duo brings MJ’s song back to life with their own twist and change of tempo, as well as a beautifully shot vid of Coco and friends in Copenhagen, Denmark.

Quadron was in New York City this past June for their first Brooklyn performance. You can hear the full thing here.

Plug Research is taking over now; they’re too good. Today they gave us a video of Bilal (who’s new album Airtight’s Revenge came out this week) working with Miguel Atwood-Ferguson‘s orchestra to play a Bilal-style ”cover” of a classic Bob Marley song, “Is This Love.” Bilal puts a beautiful new twist on the song making it almost unrecognizable, with the help of the orchestra he leads along the way. Another “cover” was recorded during the same session which we’ll get soon, and that’s gonna be none other than Soft Cells “Tainted Love.”